Oat huller



July 10, 1928. 1,677,111

R. STANLEY OAT HULIIERA Filed May 22, 1926 aucun@ Patented July 10,1928.

UNITEDN STATES ROBEBT STANLEY, OF DE WITT, IQWA.

OAT HULLER.

hApinicatim; filed may 22,

f The object of the invention is to provide i a simple and yet `effective machine for the i separation of grain from its chalf -so that y the grain may be delivered at the discharge end in clean condition and the chaff d1- rected through an appropriate waste discharge; to provide an effective initial feeding means operatively connected With the hnlling means; and to provide a blower at the delivery end operatively connected with the hulling means and serving to positively direct the chaff through a waste outlet and the grain through a delivery outlet.

With this object in view, the invention consists in a construction and combination of arts of which a preferred embodiment is il ustrated in the accompanying drawings, wherein: e

`Figure 1 is a side `elevational view of the invention.

Figure 2 is la central vertical longitudinal vsection view. e

n Figure 3Jis an end elevational view.

v The crushing and se arating cylinders `.10 and` 11 are dispose with the former above the `lattelgthe axes of rotation of the two being in an inclined plane` and both being enclosed in a. housing 12 defining chambers 13 and 14 `in which the cylinders are respectively located. casing is carried `by `a frame 15 on the side bars 1G and 17 of which are mounted bearings 18 and 19 for the shafts 20 and 21 of thetwo cylinders, the shafts extending through the side walls of the housing to reach the bearings.

The cylinders `both rot-ate in the same direction-that is, both have angular movement in the same direction, so that at the point where the peripheries are adjacent (the opening 22 between the chambers 13 and 14) they are moving in opposite directions. Thus, as the grain is transferred from the chamber 13 to the chamber 14 through the opening 22, it is east by the a cylinder 1() with great force against the cylinder 11, and the former cylinder having crushed the hulls, the latter cylinder by impact effectively separates the hulls from the gram.`

The cylindrical wall of the chamber 13 from the inlet 23 to the outlet opening 22 is provided with a reticulated covering 24 serving to retard movement of the grain around the cylindrical surface ofthe chamber. Thus, the grain is retarded so that the transverse ribs of the crushing cylin- 1936. serial no; negeer.

dermay effectively crush the hulls. Both cylinders 10 and 11 are in the form of spiders of which the rims 26 are spanned by bars 27, the latter being preferably of angular form with `one flange bolted to the peripheral edges of the rims and the remaining flange being disposed radiallyof the spiders for edge contact with the grain admitted to the chamber 13.

In the feed or intake opening 23 there is disposed a force feed device consisting of a bladed feed roll 28 disposed at the bottom of a. hopper 29, the feedY roll being mounted on a shaft 30 "which, exterior to the lio per, carries a pulley 31 by means of whic "the shaft is rotated. The deposit of the grain in the hopper `29 and the rotation of feed roll 28 serves tov force the gia-inidown through the intake opening 23, 'when itis taken up by the cylinder 10 and the hulls crushed, after which it is transferred, as aforesaid, to the cylinderY 11 wliich,`ha`ving separated the hullsfrom `the rgrain inipact with the bars 27 thereon, then trans- 'fers the whole to a discharge chute through the-bottom wall of ywhich an air "blast is directed by means of the blower' 33,

the latter being carried on a shaft 34' which is provided with a pulley 35. 'Beyondthe blower the chiitel 32 is provided witha screen insert 3G through which thegrain passes to a. discharge chute 37, thehulljs and chaff' being directed on through the chute to a waste outlet 38. i

Motion is communicated tothe whole vby means of a belt 'connecting a driver to the pulley 39 mounted on the v'shaft 21d At the opposite end the shaft 21 carries a pulley 40 over which travels a belt 41, as well as a belt 42, the former extending around the pulley 43 of the shaft 20 and the latter around a pulley 35 on the shaft 34. A belt `45 trained over the pulley 31 of the feed roll 28 serves to communicate motion to the feed roll from the shaft 18 because of saidY belt being` trained over the pulley 43.v Obviously, the feed roll, the two cylinders and the fan are put .in motion upon the starting of the driving motor which, as aforesaid, is operatively connected to the shaft 21.

The invention having been-` described, what is claimed as new and useful is:

1. An oat huller comprising substantially tangentially arranged crushing and separating cylinders, chambers in which said cylinders are mounted, the chambers being in lll communication at the point of tangency ot the cylinders, and means tor rotating the cylinders in relative reverse diiectioiis at the point of taiigeney, both cylinders having courting members moving in reverse direclions at the point of communication between the chambers, those of the "crushing cylinder casting the moving grain against those of the separating cyliiide' and intensifying the separating action as it passes from the chamber of the one to the chamber of the other.

2. An oat huller comprising substantially tangentially arranged crushing and separating cylinders, chambers in which said cyliiiders are mounted, the chambers being in communication at the point of tangency of the cylinders, and means for rotating the cylinders in relative reverse directions at the point of tangency, both cylinders having coacting members moving in reverse directions at the. point of communication between the chambers, those of the crushing cylinder castingtlie moving grain against those of the separating cylinder and intensifying the separating action as it passes from the chambei' of the one to the chamber of the other,

the` crushing cylinder chamber being provided with a reticiilated retardation device extending around the crushing cylinder for a portion ot' its periphery.

3. An oat huller comprising substantially tangentially arranged crushing and separating cylinders, chambers in which said cylinders are mounted, the chambers being in communication at the point oftangency of the cylinders, and means for rotating the cylinders in relative reverse directions at the point of tangency, both cylinders having coacting members moving in ieverse directions at the point of communication between the chambers, those of the crushing cylinder `casting the moving grain against those of the separating cylinder and intensifying the separating action as it passes from the chammunication at the point of tangency of the" cylinders, and means for effecting syiiclironous movement of the cylinders iii reverse directions at the point of tangency, whereby the axial bars of the crushing cylinder may cast the moving grain against the bars of the separating cylinder and intensify the separating action at the time of transfer of the grain from the chamber of the one cylinder to the chamber of the other.

5. An oat huller comprising substantially tangential crushing and separating cylinders of which the peripheries are definedby axial bars, chambers in which said cylinders are mounted, the chambers being in c0mmiinication at the pointof tangency of the"` cylinders, and means for effecting synchronous movement ofthe cylinders in reverse direct-ions at the point of tangeiicy,`wliereby the axial bars of the crushing cylinder may east the moving grain afrainst the bars of the separating cylinder and intensify the separating action at the time of transfer of the grain from the chamber of the one cylinder to the chamber of the other, the cylinders being timed so that the bars of the one more iii intercurrent relation with the bars of the other.

In testimony Wlieregf he aiiixes his signature.

ROBERT STANLEY. 

